tristate "OProfile system profiling (EXPERIMENTAL)"
depends on PROFILING
depends on HAVE_OPROFILE
+ depends on TRACING_SUPPORT
+ select TRACING
+ select RING_BUFFER
+ select RING_BUFFER_ALLOW_SWAP
help
OProfile is a profiling system capable of profiling the
whole system, include the kernel, kernel modules, libraries,
If unsure, say N.
+config OPROFILE_IBS
+ bool "OProfile AMD IBS support (EXPERIMENTAL)"
+ default n
+ depends on OPROFILE && SMP && X86
+ help
+ Instruction-Based Sampling (IBS) is a new profiling
+ technique that provides rich, precise program performance
+ information. IBS is introduced by AMD Family10h processors
+ (AMD Opteron Quad-Core processor "Barcelona") to overcome
+ the limitations of conventional performance counter
+ sampling.
+
+ If unsure, say N.
+
+config OPROFILE_EVENT_MULTIPLEX
+ bool "OProfile multiplexing support (EXPERIMENTAL)"
+ default n
+ depends on OPROFILE && X86
+ help
+ The number of hardware counters is limited. The multiplexing
+ feature enables OProfile to gather more events than counters
+ are provided by the hardware. This is realized by switching
+ between events at an user specified time interval.
+
+ If unsure, say N.
+
config HAVE_OPROFILE
- def_bool n
+ bool
config KPROBES
bool "Kprobes"
for kernel debugging, non-intrusive instrumentation and testing.
If in doubt, say "N".
+config HAVE_EFFICIENT_UNALIGNED_ACCESS
+ bool
+ help
+ Some architectures are unable to perform unaligned accesses
+ without the use of get_unaligned/put_unaligned. Others are
+ unable to perform such accesses efficiently (e.g. trap on
+ unaligned access and require fixing it up in the exception
+ handler.)
+
+ This symbol should be selected by an architecture if it can
+ perform unaligned accesses efficiently to allow different
+ code paths to be selected for these cases. Some network
+ drivers, for example, could opt to not fix up alignment
+ problems with received packets if doing so would not help
+ much.
+
+ See Documentation/unaligned-memory-access.txt for more
+ information on the topic of unaligned memory accesses.
+
+config HAVE_SYSCALL_WRAPPERS
+ bool
+
config KRETPROBES
def_bool y
depends on KPROBES && HAVE_KRETPROBES
+config HAVE_IOREMAP_PROT
+ bool
+
config HAVE_KPROBES
- def_bool n
+ bool
config HAVE_KRETPROBES
- def_bool n
+ bool
+
+#
+# An arch should select this if it provides all these things:
+#
+# task_pt_regs() in asm/processor.h or asm/ptrace.h
+# arch_has_single_step() if there is hardware single-step support
+# arch_has_block_step() if there is hardware block-step support
+# asm/syscall.h supplying asm-generic/syscall.h interface
+# linux/regset.h user_regset interfaces
+# CORE_DUMP_USE_REGSET #define'd in linux/elf.h
+# TIF_SYSCALL_TRACE calls tracehook_report_syscall_{entry,exit}
+# TIF_NOTIFY_RESUME calls tracehook_notify_resume()
+# signal delivery calls tracehook_signal_handler()
+#
+config HAVE_ARCH_TRACEHOOK
+ bool
config HAVE_DMA_ATTRS
- def_bool n
+ bool
+
+config USE_GENERIC_SMP_HELPERS
+ bool
+
+config HAVE_CLK
+ bool
+ help
+ The <linux/clk.h> calls support software clock gating and
+ thus are a key power management tool on many systems.
+
+config HAVE_DMA_API_DEBUG
+ bool
+
+config HAVE_DEFAULT_NO_SPIN_MUTEXES
+ bool
+
+source "kernel/gcov/Kconfig"